Introduction; Whip Antenna - Nokia 3155 Antenna Description And Troubleshooting

Nokia Customer Care

Introduction

This troubleshooting guide addresses potential failures that affect antenna performance
of the 3155/3155i/3152, and discusses methods for correction of these failures.

Whip Antenna

Check the following minimum visual quality standards of the whip assembly:
• No physical cracks or mechanical defects.
• No excess oil, dirt, or particles appear on the parts.
• Whip cap and sheath over the mold parting line (flash or offset) is less
than 0.1 mm.
• NiTi extrusion must completely cover the NiTi wire. No uncovered NiTi wire can
be seen from the tube side.
• Proper printing is present (found on the plastic connector).
• Whip cap must be perpendicular to the NiTi wire (maximum of 5°).
• Antenna straw must not appear twisted, cracked, bent, or discolored.
• No gate flash greater than 0.1 mm anywhere on the assembly.
• Feed contact must appear at a 45-degree angle and must be free from damage,
deformation, or unusual bending.
• Straw must be approximately 5.0mm from the end of the split bottom stop.
Bottom stopper
The whip antenna is shipped fully retracted with the telescopic section fully collapsed.
The feed contact must appear at a 45-degree angle and must be free from damage,
deformation, or unusual bending. The straw must be approximately 5.0mm from the end
of the bottom stop.
ISSUE 1 07/2005
Connector
Figure 1: Whip antenna assembly
©2005 Nokia Corporation
3155/3155i (RM-41), 3152 (RM-61)
Antenna Description and Troubleshooting
Stubby tower
O-Ring
Straw
Company Confidential
Cap
Telescopic tube
Page 3